OpenTechnical

OT-2026-000090026

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000090026) never changes.

Identity and time

Publication numberOT-2026-000090026 · never reused
Internal UUID01a0ae9c-428e-71e1-a304-7301477c8a12 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090026
StatusPUBLIC

Content hashes

Canonical texte2e58d9e01afd855c2d6007d3df92087e2488488ebf017d656d1810b37a216a0
Markdown8ab32a67a050f455505a90203774d8c85281faeefc3dd31c245c345e5d26093c
PDF
Publication page23a1d3f5ffe4ec76f55c0be486b6b9cba1c71ba1c4bb2802ba7943f1af9ad541
Manifestb402f389e2c4612ee524b2e1ffd943e2280595fb1312c9af87fa28cfee567a42

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signature3rXTfQctB7atU7SKXI2HV/SkoQGW8isaa1lZM3yP3bPoXB2BzCKOInulkg2GRwBatG/xNBIUZc+NRBQksFttBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:45:25.451388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090026
observed 23a1d3f5ffe4ec76f55c0be486b6b9cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:25.430968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090026/manifest.json
observed b402f389e2c4612ee524b2e1ffd943e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:25.412902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090026/publication.md
observed 8ab32a67a050f455505a90203774d8c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:25.392581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090026/publication.txt
observed e2e58d9e01afd855c2d6007d3df92087...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.